Wrench.



Patented Oct 29, I90l. F. WEIMAR.

WRENCH (Application filed. Jan. 5, 1901.]

(No Model.)

UNITED STATES PATENT OFFICE.

FRED IVEIMAR, OF CHICAGO, ILLINOIS, ASSIGNOR OF TWO-THIRDS TO S. A.FRENCH, OF CHICAGO, ILLINOIS, AND T. D.IIEWI'IT, OF FREE- WRENCH.

SPECIFICATION forming part of Letters Patent No. 685,544, dated October29, 1901.

Application filed January 5,1901. $erial No. 42,206. (No model.)

To aZZ whom it may concern.-

Be it known that I, FRED WEIMAR, a citizen of the United States ofAmerica, residing at Chicago, in thecounty of Cook and State ofIllinois, have invented certain new and. usef ul Improvements inWrenches, of which the following is a specification.

My invention relates to certain improvements in wrenches designed at thesame time to make a more efficient and handy wrench and to also adaptthe same for use in connection with other mechanism to furnish powerforthe operation of the wrench. To such end the invention consists incertain novel characteristics, to be hereinafter described and In thedrawings, Figure 1 is a longitudinal median section. Fig. 2 is an endview looking in the direction of the arrow 2 of Fig. 1. Fig. 3 is atransverse section in line 3 3 of Fig. 1. Fig. 4 is a similar sectionwith a chuck and feeding device added, and Fig. 5 is an under plan ofthe chuck.

Referring to the drawings, A is a casing, preferably made up of twolateral halves a a, secured together by means of screws a and threadedferrules a a. In the two halves of the case are provided bearings a. aM, in

which is journaled a shaft B, provided with a square end 17, projectingfrom the case, and within the case with a worm b. The two parts of thecase are provided with lateral extensions a a", having circular bearingsa M, in which is journaled a worm-gear O, meshing with the worm b andprovided with a non-circular hole 0, adapted to fit over the bolt ortool to be used and also to hold suitable dies or chucks to fit othersizes of bolts or tools. The friction of the worm and gear will preventthe rotation of the gear when the wrench is used as a hand-wrench, andthe angular position of the hole in the gear may be varied to greatadvantage in working in places where there is not sufficient room for afree swinging of the handle. Where suitable driving machinery ispresent, the same may be secured to the shaft B and the nut or tooldriven automatically without swinging the wrench by hand.

In Fig. 4 I have shown a suitable die or chuck D to hold one form ofdrill, said chuck being provided with a portion at, fitted to theopening in the spiral gear, a socket cl, fitted to the head of the tool,and a screw-threaded socket (1 in which is threaded a pin E, providedwith a hand-wheel e and a preferably sharp end e to bear against asuitable abutment and enable the tool to be fed to its work.

I do not confine my invention to the exact details of construction,inasmuch as the same are to a certain extent immaterial.

I claim as new and desire to secure by Letters Patent- 1. In a wrench,the combination with a suit able casing having a projection adapted foruse as a handle, of a gear revolubly mounted in the casing and providedwith an axial noncircular socket, and a power transmitting shaftrevolubly mounted in said projection and provided with a worm engagingsaid gear; whereby the gear is prevented from rotating in its bearingswhen the projection is used as a wrench-handle but is rotated therein byrotary force applied to the shaft.

2. In a wrench, the combination with a suitable casing of a gearrevolubly mounted in said casing and having an axial recess adapted toreceive a nut, or the like, to be rotated, and a shaft revolubly mountedin said casing to project at one end therefrom, provided with a wormengaging said gear, and having its projecting end adapt ed to be engagedby driving means.

3. In awrench, the combination with a gear having an axial recess toreceive a nut or the like, of a shaft provided with a worm engaging saidgear and having one end adapted to be engaged by driving means, and acasing furnishing revoluble bearings for said gear and shaft and leavingsaid recess exposed.

4. In a wrench, the combination with a gear having an axial recess toreceive a nut or the like, of a shaft having a worm engaging said gearand an end portion adapted to be engaged by driving means, of a two-partcasing inclosing and forming bearings for said gear and shaft andseparable in their plane.

5. In a Wrench, the combination with a gear provided with an axialrecess to receive a nut or the like, of a shaft provided with a wormengaging said gear and with an end portion adapted to be engaged bydriving means, and a casing inclosing the gear, forming bearingstherefor, and having a handle-like projecting sleeve to inciose andrevolubly support said shaft.

6. In a Wrench, the combination with suitable casing, of a gearjournaled in the casing and having a non-circular axial opening, a shaftalso journaied in the casing, provided with a worm engaging the gear,and having a projecting end portion adapted to receive driving means, adie fitting the opening in the gear and having in one end a socket, anda screw working in the opposite end of the die 15 and adapted to reactagainst a suitable abutment and force the apparatus forward.

In Witness whereof I have hereunto set my hand, at Chicago, in thecounty of Cook and State of Illinois, this 22d day of December, 20

FRED WEIHAR.

Witnesses: CHAS. O. SHERVEY,

S. BLIss.

